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DL -Threitol dicarbonate and erythritol dicarbonate were prepared by the reaction of butadiene dioxide (DL and meso) with carbon dioxide. Treated with aqueous ammonia the dicarbonates gave the corresponding dicarbamates.  相似文献   

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Sila-analoguesA 2 andB 2 of two drugs from the benzhydryl ether class, chlorphenoxamine and clofenetamine, were synthesized for the first time by the steps shown in scheme 1. They and their precursors I–VI were characterized by their physical (Table 1) and chemical properties and their structures confirmed by n.m.r., mass and infrared spectrocopy (Tables 2–5). Their physiological effects were investigated and compared with those of the carbon analogues (Chapter 5).

1. Mitt.:R. Tacke undU. Wannagat, Mh. Chem.106, 1005 (1975).

Mit Auszügen aus der DissertationR. Tacke, Techn. Univ. Braunschweig 1974.  相似文献   

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By application of perester oxydation of bicyclic pyrrol derivatives dehydroheliotridine as well as the corresponding 3-oxo derivative were synthesized, both being basic compounds of several products.  相似文献   

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